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Description

Direct-replacement 5th gear (mainshaft, overdrive) for the New Venture NV4500 5-speed manual used across Dodge/Ram and GM trucks. The 22-tooth helical gear and 31-spline bore are machined to OE-matched geometry for quiet highway operation and clean 4–5/5–4 shifts. Made from case-hardening alloy steel and carburized & quenched for long service life. Pair with the matching 5th/reverse synchronizer set and 5th-gear counter gear; verify fitment by transmission tag and year split before ordering.

Specification

Tooth Form: Helical

Tooth Count: 22/31T

Material: Alloy case-hardening steel, SCM415 / SAE 8620 (or equivalent)

Heat Treatment: Carburized & quenched

Surface Hardness: HRC 58–62

Manufacturing: CNC turning/milling; precision hobbing; internal spline cutting/broaching; deburring; bore & locating faces precision-ground